EP3819675A1 - Imagerie de système de ct à comptage de photons - Google Patents

Imagerie de système de ct à comptage de photons Download PDF

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Publication number
EP3819675A1
EP3819675A1 EP20202176.2A EP20202176A EP3819675A1 EP 3819675 A1 EP3819675 A1 EP 3819675A1 EP 20202176 A EP20202176 A EP 20202176A EP 3819675 A1 EP3819675 A1 EP 3819675A1
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EP
European Patent Office
Prior art keywords
photon
counting
model
energy
detector
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Granted
Application number
EP20202176.2A
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German (de)
English (en)
Other versions
EP3819675B1 (fr
Inventor
Shanshan Lou
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Shanghai Neusoft Medical Technology Co Ltd
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Shanghai Neusoft Medical Technology Co Ltd
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Publication of EP3819675A1 publication Critical patent/EP3819675A1/fr
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    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01T—MEASUREMENT OF NUCLEAR OR X-RADIATION
    • G01T1/00—Measuring X-radiation, gamma radiation, corpuscular radiation, or cosmic radiation
    • G01T1/29—Measurement performed on radiation beams, e.g. position or section of the beam; Measurement of spatial distribution of radiation
    • G01T1/2914—Measurement of spatial distribution of radiation
    • G01T1/2985—In depth localisation, e.g. using positron emitters; Tomographic imaging (longitudinal and transverse section imaging; apparatus for radiation diagnosis sequentially in different planes, steroscopic radiation diagnosis)
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B6/00—Apparatus for radiation diagnosis, e.g. combined with radiation therapy equipment
    • A61B6/42—Apparatus for radiation diagnosis, e.g. combined with radiation therapy equipment with arrangements for detecting radiation specially adapted for radiation diagnosis
    • A61B6/4208—Apparatus for radiation diagnosis, e.g. combined with radiation therapy equipment with arrangements for detecting radiation specially adapted for radiation diagnosis characterised by using a particular type of detector
    • A61B6/4241—Apparatus for radiation diagnosis, e.g. combined with radiation therapy equipment with arrangements for detecting radiation specially adapted for radiation diagnosis characterised by using a particular type of detector using energy resolving detectors, e.g. photon counting
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B6/00—Apparatus for radiation diagnosis, e.g. combined with radiation therapy equipment
    • A61B6/02—Devices for diagnosis sequentially in different planes; Stereoscopic radiation diagnosis
    • A61B6/03—Computerised tomographs
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B6/00—Apparatus for radiation diagnosis, e.g. combined with radiation therapy equipment
    • A61B6/02—Devices for diagnosis sequentially in different planes; Stereoscopic radiation diagnosis
    • A61B6/03—Computerised tomographs
    • A61B6/032—Transmission computed tomography [CT]
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B6/00—Apparatus for radiation diagnosis, e.g. combined with radiation therapy equipment
    • A61B6/42—Apparatus for radiation diagnosis, e.g. combined with radiation therapy equipment with arrangements for detecting radiation specially adapted for radiation diagnosis
    • A61B6/4266—Apparatus for radiation diagnosis, e.g. combined with radiation therapy equipment with arrangements for detecting radiation specially adapted for radiation diagnosis characterised by using a plurality of detector units
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B6/00—Apparatus for radiation diagnosis, e.g. combined with radiation therapy equipment
    • A61B6/52—Devices using data or image processing specially adapted for radiation diagnosis
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B6/00—Apparatus for radiation diagnosis, e.g. combined with radiation therapy equipment
    • A61B6/58—Testing, adjusting or calibrating apparatus or devices for radiation diagnosis
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01T—MEASUREMENT OF NUCLEAR OR X-RADIATION
    • G01T1/00—Measuring X-radiation, gamma radiation, corpuscular radiation, or cosmic radiation
    • G01T1/16—Measuring radiation intensity
    • G01T1/24—Measuring radiation intensity with semiconductor detectors
    • G01T1/247—Detector read-out circuitry

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  • Health & Medical Sciences (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Medical Informatics (AREA)
  • High Energy & Nuclear Physics (AREA)
  • Molecular Biology (AREA)
  • Physics & Mathematics (AREA)
  • Radiology & Medical Imaging (AREA)
  • Veterinary Medicine (AREA)
  • Nuclear Medicine, Radiotherapy & Molecular Imaging (AREA)
  • Optics & Photonics (AREA)
  • Pathology (AREA)
  • Biophysics (AREA)
  • Biomedical Technology (AREA)
  • Heart & Thoracic Surgery (AREA)
  • Public Health (AREA)
  • Surgery (AREA)
  • Animal Behavior & Ethology (AREA)
  • General Health & Medical Sciences (AREA)
  • General Physics & Mathematics (AREA)
  • Spectroscopy & Molecular Physics (AREA)
  • Pulmonology (AREA)
  • Theoretical Computer Science (AREA)
  • Computer Vision & Pattern Recognition (AREA)
  • Measurement Of Radiation (AREA)
  • Apparatus For Radiation Diagnosis (AREA)
EP20202176.2A 2019-11-11 2020-10-16 Imagerie de système de ct à comptage de photons Active EP3819675B1 (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201911094472.7A CN110916697B (zh) 2019-11-11 2019-11-11 成像方法、装置及图像处理设备

Publications (2)

Publication Number Publication Date
EP3819675A1 true EP3819675A1 (fr) 2021-05-12
EP3819675B1 EP3819675B1 (fr) 2023-06-07

Family

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Family Applications (1)

Application Number Title Priority Date Filing Date
EP20202176.2A Active EP3819675B1 (fr) 2019-11-11 2020-10-16 Imagerie de système de ct à comptage de photons

Country Status (3)

Country Link
US (1) US11331061B2 (fr)
EP (1) EP3819675B1 (fr)
CN (1) CN110916697B (fr)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN113712583B (zh) * 2021-08-10 2023-09-22 上海联影医疗科技股份有限公司 死时间校正方法、装置、计算机设备和存储介质

Citations (3)

* Cited by examiner, † Cited by third party
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US20150160355A1 (en) * 2013-12-11 2015-06-11 Toshiba Medical Systems Corporation Reference calibration in photon counting based spectral ct
WO2016076767A1 (fr) * 2014-11-10 2016-05-19 Prismatic Sensors Ab Imagerie par rayons x sur la base de données d'image provenant d'un détecteur de rayons x multi-bac de comptage de photons
US20160203620A1 (en) * 2015-01-09 2016-07-14 Kabushiki Kaisha Toshiba Wide x-ray spectrum photon counting computed tomography

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US7330578B2 (en) * 2005-06-23 2008-02-12 Accuray Inc. DRR generation and enhancement using a dedicated graphics device
RU2013129865A (ru) * 2010-12-01 2015-01-10 Конинклейке Филипс Электроникс Н.В. Особенности диагностического изображения рядом с источниками артефактов
WO2013142220A2 (fr) * 2012-03-22 2013-09-26 The Cleveland Clinic Foundation Reconstruction augmentée pour tomographie informatique
JP6073675B2 (ja) * 2012-12-28 2017-02-01 東芝メディカルシステムズ株式会社 Ｘ線ｃｔ装置及び制御プログラム
CN103913472B (zh) * 2012-12-31 2016-04-20 同方威视技术股份有限公司 Ct成像系统和方法
US9128194B2 (en) * 2013-04-19 2015-09-08 Kabushiki Kaisha Toshiba Pileup correction method for a photon-counting detector
JP2016522891A (ja) * 2013-04-24 2016-08-04 コーニンクレッカ フィリップス エヌ ヴェＫｏｎｉｎｋｌｉｊｋｅ Ｐｈｉｌｉｐｓ Ｎ．Ｖ． 訂正手段を備えたパルス処理回路
CN104569002B (zh) * 2013-10-23 2018-04-27 北京纳米维景科技有限公司 基于光子计数的x射线相衬成像系统、方法及其设备
JP6448917B2 (ja) * 2014-05-28 2019-01-09 キヤノンメディカルシステムズ株式会社 フォトンカウンティングｃｔ装置
US9801595B2 (en) * 2014-09-08 2017-10-31 Toshiba Medical Systems Corporation Count-weighted least squares parameter estimation for a photon-counting detector
US9476993B2 (en) * 2015-01-07 2016-10-25 Toshiba Medical Systems Corporation Apparatus and method for computing detector response of a photon-counting detector
CN106456098B (zh) * 2016-07-08 2019-11-19 上海联影医疗科技有限公司 衰减图的生成方法及系统
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JP6896664B2 (ja) * 2018-03-02 2021-06-30 株式会社日立製作所 放射線撮像装置および光子計数型検出器の較正方法

Patent Citations (3)

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Publication number Priority date Publication date Assignee Title
US20150160355A1 (en) * 2013-12-11 2015-06-11 Toshiba Medical Systems Corporation Reference calibration in photon counting based spectral ct
WO2016076767A1 (fr) * 2014-11-10 2016-05-19 Prismatic Sensors Ab Imagerie par rayons x sur la base de données d'image provenant d'un détecteur de rayons x multi-bac de comptage de photons
US20160203620A1 (en) * 2015-01-09 2016-07-14 Kabushiki Kaisha Toshiba Wide x-ray spectrum photon counting computed tomography

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
WANG X ET AL: "MicroCT with energy-resolved photon-counting detectors;MicroCT with energy-resolved photon-counting detectors", PHYSICS IN MEDICINE AND BIOLOGY, INSTITUTE OF PHYSICS PUBLISHING, BRISTOL GB, vol. 56, no. 9, 5 April 2011 (2011-04-05), pages 2791 - 2816, XP020189863, ISSN: 0031-9155, DOI: 10.1088/0031-9155/56/9/011 *

Also Published As

Publication number Publication date
US11331061B2 (en) 2022-05-17
CN110916697A (zh) 2020-03-27
CN110916697B (zh) 2023-05-02
EP3819675B1 (fr) 2023-06-07
US20210137473A1 (en) 2021-05-13

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